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API 2HGR50 Steel for Offshore Platforms executive standard: API SPEC 2H-2006
API 2HGR50 steel is suitable for surface carburizing and hardening treatment, with good workability, small deformation and good fatigue resistance. It is used to make ship hulls, offshore oil production platforms, platform pipe joints and other structural parts.
Chemical composition of 2HGR50 steel plate:
C: 0.07 Si: 0.20 Mn: 1.48 P: 0.004 S: 0.001 Al: 0.053
Mechanical properties of 2HGR50 steel plate:
Yield strength: 735Mpa
Tensile strength: 930Mpa
Elongation: 10%
Area shrinkage: 45%
Impact energy: 471
Heat treatment specification and metallographic structure of API2HGR50 alloy steel:
Quenching heating temperature (℃): 850℃, oil cooling;
Tempering heating temperature (℃): 200℃, water cooling, air cooling;
Metallographic structure: tempered martensite.
2HGr50 corresponding grade
API2HGr50 is a steel plate for the structure of an American offshore platform, SM490YB is a Japanese structural steel plate, and the executive standard is JISG3106. 2HGr50 thickness: 8-100mm.
GB T 5312 Carbon and carbon-manganese steel seamless steel tubes and pipes are mainly for ship use, also known as shipbuilding steel pipes. Under GB T 5312, there are mainly 5 steel grades: grade 320, 360, 410, 460 and 490. Each grade covers three levels: I, II, III.
Angle steel, commonly known as angle iron, is a long strip of steel whose sides are perpendicular to each other. There are equal angle steels and unequal angle steels. The two sides of equal angle steel are equal in width. The unequal angle steel is also known as L shape profile steel.
Flat bar steel can be produced according to the user's needs, with fixed thickness, width and length. It can reduce the cutting process for users, reduce the consumption of labor and materials, and also reduce the processing loss of raw materials.
Bulb flat steel for shipbuilding
The bulb flat steel is a kind of medium section material which is mainly used in the field of shipbuilding and bridge building, and the shipbuilding bulb flat steel is an auxiliary medium section material for shipbuilding.
The steel for shipbuilding and oil platform---FH40, is the high tensile strength steel.The shipbuilding steel FH40 is the Hull structural steel.We can provide FH40 shipbuilding steel plate price.
The steel for shipbuilding and oil platform---EH40, is the high tensile strength steel.The shipbuilding steel EH40 is the Hull structural steel.We can provide EH40 shipbuilding steel plate price.
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